% -*-LaTeX-*-
% $Id: abstract.tex 70 2007-01-30 21:59:16Z nicolosi $

\begin{abstract}
In this paper, we present \sysname{}, a multicast overlay system designed
to be used as the backend for a multi-channel streaming service. In place of a
tree-based approach to multicast, we use a connected graph mesh approach. The
system consists of an organization mesh that controls adding and removing
servers to the system, and "mini-meshes" that distribute content for a
particular channel (\eg{} a sports video stream). The combination of two types
of mesh allows for a system that configures itself almost completely
automatically and in a decentralized manner. This includes both adding new
servers in to the network and allocating an appropriate number of servers to
meet the demands of clients.
%In this paper, we present \sysname{}, a peer-to-peer overlay multicast system designed with low-bandwidth streaming applications in mind. Instead of using a tree-based design, we use a connected graph mesh with redundant edges to mitigate the effects of losses while still reaching many clients quickly.
\end{abstract}

